Improvement in evaporating-pans for saccharine liquids



UNITED ASTATES 'PATENT OFFICE.

`FRANCIS e. BUTLER, oF RELLowS FALLS, vERMoNT, ASSIGNoR To HIM` SELF AND JAMES E. WILLIAMS, oF CLASTCNBURY, CONNECTICUT.

IMPROVEMENT IN EVAPORATING-PANS FOR SCCHARINE'LIQUIDS.

To all whom it may concern:

Be it known that I, FRANCIS G. BUTLER, of Bellows Falls, county ot' Windham and State 4 of Vermont, have invented certain new and useful Improvements in EvaporatingfPans; and to enable others skilled in the art to make `and use the same,.I will proceed to describe it,

referring1 to the drawings, in which the same letters indicate like parts in each of the figures.

The nature of this inivention'consists in forming a corrugated pan-bottom. The width of the sheets which form the bottom also forms the length of said corrugations. Its sides are made broad and Haring at an angle ot' about forty-five degrees. On each side and about half-way between each corrugaton are arranged scum-arresters, fitted to the bottom` and sides of the pau and extending onto the pan-bottom about one-fourlh of its width, the upper edges extending thence in a straight line to nearly the top edge of the daring sid-es, the object ot' which is1 to arrest and hold the senin upon the Haring sides, thus affording facility for gathering and removing the scum.

In the acccompanying drawings, Figure lis a top or plan view of this pan. Fig. 2 is a side e are scum -arresters arranged between a part or all ot' the corrugations The lower edges extend onto the bottom about one-fourth of its width, and are tted and secured to the daring sides, and extending nearly to the top or outer edge thereof, thus forming elevated compartments upon the sides for arresting and holding the scums until removed.

f is a discharge-nozzle. r

The scum-arresters also serve an im portant purpose in bracing and holding the sides and bottom rmlylin their proper relative positions, preventing either from sagging out of shape, and in stitt'ening the whole structure of the pan, .which is a highly important object to be attained with large pans constructed wholly ot' sheet metal, and they should be firmly secured to both sides and bottom.

During the process of evaporation the scums are thrown upon the sides by the ebullition ot the fluid, and into the elevated compartments formed upon the sides by the scum-arresters, to be removed at the pleasure ot' the operator.

What I claim, and desire to Secure by Letters Patent, is

An evaporating pan having corrugations running across the whole width of the bottom, in combination with asystem of Scum-arrest- .ers forming elevated compartments upon the flaring sides, substantially as and for the purpose set forth.

FRANCIS G. BUTLER.

Witnesses:

EDM. F. BROWN, JEREMY W. BLISS. 

